Electrolyte Diffusion Degassing Chamber for Professional Li-on Battery Research

Electrolyte Diffusion Degassing Chamber for Professional Li-on Battery Research

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CY-MSK-170 electrolyte diffusion & degassing chamber is specifically designed for professional Li-ion Battery Research. It is mainly used for removing air from the electrolyte after it's been injected into the polymer Li-ion cell or after the formation for final sealing under a vacuumed condition. It is easy to operate and suitable for all types of batteries (especially soft bag battery and cylinder battery). Unique periods of vacuum control system allows electrolyte to thoroughly saturate the electrodes to ensure the best battery charging-discharging performance. the equipment adopts a split design, and the vacuum chamber can be placed in a glove box for use.

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If you are interested in our Vacuum stationary device, please contact us for more information and quotation.

Tel: 86 159 3625 3205

Email: zerlinda@zztainuo.com

Contact person: Zerlinda

WeChat: 86 159 3625 3205

Technical Specifications:

Model	CY-MSK-170
Inner Chamber Size	326mm(L) x 206mm(W) x 148mm(H)
Product Dimensions	Vacuum Box: 470mm(L) x 330mm(W) x 420mm(H) Control Unit: 460mm(L) x 220mm(W) x 340mm(H)
Slot Trays (included)	Cylinder Slot Tray is working for the cylindrical cell type of battery samples. (96 slots) Cylinder slot size: 20mm Dia. x 30mm Depth Tray Dimension: 254mm L x 195mm W x 95mm H
Glovebox Compatible	Feedthrough is included to allow operation inside MTI Glove Box Such a Feedthrough ensures air-tightness of the glove box Please use high purity inert gasses (Ar or N2), when operating in the glovebox, using Air Compressor when outside the glovebox. Air Pressure Range: 0 - 1 Mpa (0 - 99 psi) Adjustable (Air Compressor is required, but not included
Vacuum Level	-90 kPa Max. (for second vacuum step, first vacuum step require -60kPa) The vacuum pump is not included. Please click here to order at extra cost. If you have your own pump with KF25 PORT, please order Barbed fitting to KF-25 Adapter at extra cost.
Power Supply	110-240 V, Single Phase 50/60Hz
Max. Power	50W
Compressed Air	>0.6Mpa, <1.5Mpa Attention: If a gas cylinder is used instead of air compressor, a two-stage pressure regulator must be installed on the gas cylinder to limit the pressure within the required working range for safe operation.
Air Inflation Time	0 - 99.99 sec
Vacuum Condition Hold Time	0 - 99.99 sec
Operation Temperature	-20 to 40 ℃
Warranty	One year limited with lifetime support
Net Weight	37.5 kg (83 lbs)

Main accessories：

Project name	Quantity
host	1 pcs
Power control box	1 pcs
Power cord	1 pcs
Operation Manual	1 pcs

Application:

Bubble removal

Standing in semiconductor manufacturing

Pretreatment of 3D printing materials

Food and pharmaceutical drying

Debubbling of battery slurries

Lamination of composite materials

Scientific research and experiments

Vacuum dehydration and solvent removal

Vacuum standing of polymer materials

Dehumidification of precision electronic components

Application Cases《Main application of vacuum still boxes in soft-package lithium-ion batteries》

In the production process of soft-package lithium-ion batteries, the application of vacuum still boxes is mainly used to remove bubbles, improve the wettability of electrolytes and ensure the airtightness of packages. The following is a typical application of vacuum still boxes in the production process of soft-package lithium-ion batteries:

1. Cell assembly

The positive electrode sheet, separator and negative electrode sheet are stacked or wound to form a cell.

After the cell structure is completed, the initial packaging is carried out, but one end is kept open for subsequent injection.

2. Electrolyte injection

When the cell is injected with electrolyte, the required amount of electrolyte is usually injected into the open cell seal.

The injection process may cause bubbles to enter the cell, which need to be removed in subsequent processes to ensure the performance of the battery.

3. Electrolyte penetration and stilling

After the injection is completed, the cell is placed in a vacuum still box.

The vacuum degree is set and the stilling is performed so that the electrolyte penetrates into the electrode material in a vacuum environment and bubbles are removed during the injection process.

This step helps to ensure the uniform distribution of the electrolyte in the cell and avoid local drying or bubbles affecting the battery performance.

4. Vacuum rest before sealing

After the electrolyte is infiltrated, the battery cell needs to be placed in a vacuum rest box again to remove the remaining tiny bubbles and ensure that there is no air residue inside.

Set appropriate vacuum conditions to allow the electrolyte to fully infiltrate the entire electrode area.

This process can improve the consistency and safety of the battery and ensure that there will be no bulging or leakage after packaging.

5. Battery cell packaging

After the vacuum rest is completed, the opening of the battery cell is heat-sealed or laser-sealed.

The sealing needs to be done in a vacuum environment to avoid sealing air into it during packaging, thereby ensuring the airtightness of the battery.

6. Rest and formation

After the packaging, the battery is placed in a vacuum rest box for a period of time to allow the electrolyte to continue to penetrate and stabilize.

In addition, the rest process can also allow the electrolyte to completely infiltrate the electrode sheet to avoid affecting the battery performance due to uneven distribution.

Then, the battery enters the formation (i.e. the first charge and discharge) stage to activate the internal chemical reaction and form a solid electrolyte interface film (SEI film).

7. Vacuum testing and quality control

During the finished product testing stage, some soft-pack batteries may be placed in a vacuum resting box again to detect whether there are airtightness problems by vacuuming.

Vacuum resting helps to find tiny packaging defects and ensure the safety and reliability of the battery.

The key role of the vacuum resting box in the process

1.Removing bubbles: Remove bubbles during the vacuum resting process before electrolyte injection and packaging to avoid air residue inside the battery cell and prevent the battery from bulging or short circuiting during use.

2.Evenly infiltrating the electrolyte: Vacuum resting helps the electrolyte to be evenly distributed on the electrode surface, improving the energy density and electrochemical performance of the battery.

3.Packaging airtightness: Through vacuum resting, it can be ensured that there is no air residue during packaging, ensuring the long-term airtightness and safety of the battery.

4.Finished product testing: Vacuum testing helps to find tiny leaks in the package and ensure the quality of the finished product.

Vacuum resting boxes are indispensable in the production of soft-pack lithium-ion batteries, providing guarantees for the stability, safety and life of the battery.